CVE-2026-1645: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in prasunsen Hostel
The Hostel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_currency' parameter and the 'locale_url' setting in all versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
AI Analysis
Technical Summary
CVE-2026-1645 is a stored cross-site scripting vulnerability in the Hostel plugin for WordPress affecting all versions up to and including 1.1.8. The flaw exists due to improper neutralization of input in the 'custom_currency' parameter and 'locale_url' setting, allowing authenticated users with administrator privileges to inject arbitrary web scripts. This vulnerability specifically impacts multi-site WordPress installations or those where the unfiltered_html capability is disabled, enabling script execution in pages viewed by other users.
Potential Impact
An authenticated attacker with administrator-level access can inject malicious scripts that execute in the context of other users visiting the injected pages. This can lead to limited confidentiality and integrity impacts such as session hijacking or content manipulation. The CVSS 3.1 base score is 4.4 (medium severity), reflecting the requirement for high privileges and no user interaction.
Mitigation Recommendations
No official patch or fix is currently available. Users should restrict administrator access and consider disabling or limiting multi-site usage or unfiltered_html settings where possible. Monitor vendor advisories for updates or patches addressing this vulnerability.
CVE-2026-1645: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in prasunsen Hostel
Description
The Hostel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_currency' parameter and the 'locale_url' setting in all versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVSS v3.1
Score 4.4medium
Affected software
prasunsen
Hostel
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-1645 is a stored cross-site scripting vulnerability in the Hostel plugin for WordPress affecting all versions up to and including 1.1.8. The flaw exists due to improper neutralization of input in the 'custom_currency' parameter and 'locale_url' setting, allowing authenticated users with administrator privileges to inject arbitrary web scripts. This vulnerability specifically impacts multi-site WordPress installations or those where the unfiltered_html capability is disabled, enabling script execution in pages viewed by other users.
Potential Impact
An authenticated attacker with administrator-level access can inject malicious scripts that execute in the context of other users visiting the injected pages. This can lead to limited confidentiality and integrity impacts such as session hijacking or content manipulation. The CVSS 3.1 base score is 4.4 (medium severity), reflecting the requirement for high privileges and no user interaction.
Mitigation Recommendations
No official patch or fix is currently available. Users should restrict administrator access and consider disabling or limiting multi-site usage or unfiltered_html settings where possible. Monitor vendor advisories for updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-29T18:38:50.307Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab23644f7a7c54106e04243
Added to database: 09/22/2026, 08:03:16 UTC
Last enriched: 09/22/2026, 08:19:14 UTC
Last updated: 09/23/2026, 01:58:07 UTC
Views: 15
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